Development of Creative Commons licenses

[Glenn Otis Brown <glenn AT creativecommons.org>]

One possible solution for making the BY-SA license compatible with the 
GNU FDL and vice-versa, provided it goes into this particular 
versioning:

The BY-SA license's sharealike provision will say that it's okay to 
re-license derivatives with the BY-SA license OR, in the case of 
written documetns, with the GNU FDL, BUT, if licensed under the GNU 
FDL, those derivatives must also be licensed under BY-SA -- thus dual 
licensed.

Same thing in reverse for the FDL.

Not perfect, given some differences between the licenses, but might do 
the trick.